Index - U
| un | Control.Lens.Review, Control.Lens, Control.Lens.Combinators | 
| uncons | Control.Lens.Cons, Control.Lens, Control.Lens.Combinators | 
| uncurried | Control.Lens.Iso, Control.Lens, Control.Lens.Combinators | 
| UndefinedElement_ | Control.Exception.Lens | 
| under | Control.Lens.Iso, Control.Lens, Control.Lens.Combinators | 
| Underflow_ | Control.Exception.Lens | 
| underscoreFields | Control.Lens.TH, Control.Lens, Control.Lens.Combinators | 
| underscoreNamer | Control.Lens.TH, Control.Lens, Control.Lens.Combinators | 
| underscoreNoPrefixNamer | Control.Lens.TH, Control.Lens, Control.Lens.Combinators | 
| unfocusing | Control.Lens.Internal.Zoom, Control.Lens.Internal | 
| unfocusingErr | Control.Lens.Internal.Zoom, Control.Lens.Internal | 
| unfocusingFree | Control.Lens.Internal.Zoom, Control.Lens.Internal | 
| unfocusingMay | Control.Lens.Internal.Zoom, Control.Lens.Internal | 
| unfocusingOn | Control.Lens.Internal.Zoom, Control.Lens.Internal | 
| unfocusingPlus | Control.Lens.Internal.Zoom, Control.Lens.Internal | 
| unfocusingWith | Control.Lens.Internal.Zoom, Control.Lens.Internal | 
| unfolded | Control.Lens.Fold, Control.Lens, Control.Lens.Combinators | 
| uniplate | Data.Data.Lens, Control.Lens.Extras | 
| united | Control.Lens.Lens, Control.Lens, Control.Lens.Combinators | 
| universe | Control.Lens.Plated, Control.Lens, Control.Lens.Combinators | 
| universeOf | Control.Lens.Plated, Control.Lens, Control.Lens.Combinators | 
| universeOn | Control.Lens.Plated, Control.Lens, Control.Lens.Combinators | 
| universeOnOf | Control.Lens.Plated, Control.Lens, Control.Lens.Combinators | 
| unpacked | |
| 1 (Function) | Data.Text.Lazy.Lens | 
| 2 (Function) | Data.Text.Strict.Lens | 
| 3 (Function) | Data.Text.Lens | 
| unpackedBytes | |
| 1 (Function) | Data.ByteString.Strict.Lens | 
| 2 (Function) | Data.ByteString.Lazy.Lens | 
| 3 (Function) | Data.ByteString.Lens | 
| unpackedChars | |
| 1 (Function) | Data.ByteString.Strict.Lens | 
| 2 (Function) | Data.ByteString.Lazy.Lens | 
| 3 (Function) | Data.ByteString.Lens | 
| unpackLazy | Control.Lens.Internal.ByteString | 
| unpackLazy8 | Control.Lens.Internal.ByteString | 
| unpackStrict | Control.Lens.Internal.ByteString | 
| unpackStrict8 | Control.Lens.Internal.ByteString | 
| unsafePartsOf | Control.Lens.Traversal, Control.Lens, Control.Lens.Combinators | 
| unsafePartsOf' | Control.Lens.Traversal, Control.Lens, Control.Lens.Combinators | 
| unsafeSingular | Control.Lens.Traversal, Control.Lens, Control.Lens.Combinators | 
| unsnoc | Control.Lens.Cons, Control.Lens, Control.Lens.Combinators | 
| untainted | Control.Lens.Internal.Setter, Control.Lens.Internal | 
| untaintedDot | Control.Lens.Internal.Setter, Control.Lens.Internal | 
| unto | Control.Lens.Review, Control.Lens, Control.Lens.Combinators | 
| untoValName | Control.Lens.Internal.TH | 
| Unwrapped | |
| 1 (Type/Class) | Control.Lens.Wrapped, Control.Lens, Control.Lens.Combinators | 
| 2 (Data Constructor) | Control.Lens.Wrapped, Control.Lens, Control.Lens.Combinators | 
| unwrappedTypeName | Control.Lens.Internal.TH | 
| upon | Data.Data.Lens, Control.Lens.Extras | 
| upon' | Data.Data.Lens, Control.Lens.Extras | 
| use | Control.Lens.Getter, Control.Lens, Control.Lens.Combinators | 
| UserInterrupt_ | Control.Exception.Lens | 
| uses | Control.Lens.Getter, Control.Lens, Control.Lens.Combinators | 
| utf8 | |
| 1 (Function) | Data.Text.Lazy.Lens | 
| 2 (Function) | Data.Text.Strict.Lens |